Plumbing ferrule



Aug. 5, 1958 R. KOZLOWSKI ETAL 2,845,631

. PLUMBING FERRULE Filed 'July 8, 1957 A770/Q/VE Y United States PatentPLUMBING FERRULE Rudolph Kozlowski and John J. Conti, Plainville, Conn.Application July 8, 1957, Serial No. 670,550 2 Claims. (Cl. 4-1) Ourinvention relates to plumbing fittings, and is directed particularly toan improved adapter ferrule for use in connecting a toilet bowl with thevertical outlet drain stack of a household sewage system.

In modern plumbing systems, wherein rigid outlet pipes are used withtoilet bowls, there is the danger that when the house settles, thetoilet bowl will be lifted by the outlet pipe and caused to break awayfrom the seal at the floor, thereby causing leakage.

The principal object of our invention is to provide a yieldableconnecting pipe structure between a toilet bowl and a rigid sewer stackwhich incorporates a size-reducing adapter ferrule connected to saidbowl by a flexible lead elbow so as to allow settling of the housewithout lifting the toilet bowl from the floor, and without causingdamage to the seal between the toilet bowl and the outlet pipe.

Another object of our invention is to provide an adapter ferrule of theabove nature which is formed of a metal, such as brass, in which theoutlet side is of reduced diameter and eccentric with respect to theinlet side, and the interior of 'which is smooth and level at the bottomto minimize obstruction to the passage of sewage therethrough.

Another object is to provide an adapter ferrule of the characterdescribed which can readily be made of noncorrosive cast metal and whichwill be inexpensive, longwearing, easy to install, and extremely durablein use.

Other objects, features and advantages of the invention will becomeapparent from the following description when read with reference to theaccompanying drawings wherein:

Fig. 1 is an oblique view of a male ferrule embodying the invention,

Fig. 2 is a vertical view, shown partly in cross-section, of a pipingarrangement including the ferrule of Fig. l, for connecting a toiletbowl with a nearby sewage stack,

Fig. 3 is an oblique view of a female form of adapter ferrule alsoembodying the invention, and

Fig. 4 is a vertical view, partly in cross-section, of a pipingarrangement including the ferrule of Fig. 3 for connecting a toilet bowlwith a remotely located sewage stack.

Referring now in detail to the drawing, the male adapter ferrule,designated generally by the reference numeral 10, in Figs. 1 and 2, ispreferably integrally cast of brass or other suitable noncorrosive metaland is formed with a cylindrical inlet end 11, which may, for example,be of 4% inch internal diameter, and a smaller outlet end 12. which may,for example, be of 3% inch external diameter. The inlet end 11 and theoutlet end 12 of the ferrule are eccentrically arranged, and areinter-joined by an intermediate body portion 13 which forms a straightline bottom portion 14 which joins the input and output ends. At allother points the body portion 13 is gradually curved from the input tooutput ends, as indicated at 15.

The exterior of the inlet end 11 of the ferrule 10 is smoothly finished,as indicated at 16 and the periphery of form of adapter 2,845,631Patented Aug. 5, 1958 the outlet end 12 thereof is machine finished asindicated at 17. Y t

In :Fig. 2, a toilet bowl 18 is shown connectedwitha nearby sewage stack19 through the male ferrule 10 as disclosed in Fig. 1. Extending fromthe toilet bowl 18 through the floor F is a flexible lead elbow 20,which may be of 4% inch diameter to fit within the large outlet 11 ofthe ferrule 10. The elbow 20 has a vertical upper end which is connectedto a floor flange ring of the bowl 18 by the usual wax seal 21. Theouter end of the horizontal arm of the flexible lead elbow 20 is fittedwithin the larger inlet end 11 of the adapter ferrule 10, and is securedthereto by a wiped solder joint 22. The outlet end 12 of the ferrule 10fits directly into a copper T 23 interposed in the stack 19, whichpreferably is composed of copper pipe with soldered joints.

Modified form The modification of the invention illustrated in Figs. 3and 4, differs from that described above in that the female brassferrule 10a is provided at its small outlet end 12a with a machinefinished interior surface 17a for receiving one end of an elongatedhorizontal three-inch copper pipe 24 connected at the other end with acopper T 23a interposed in a remote vertical sewage stack 19a. As inFig. 2, a flexible lead elbow 20a leads from the toilet bowl 18a andfits into the inlet end 11a of the adapter ferrule 10a and is securedthereto by means of a wiped joint 22a.

Operation In use, when the floor F sags, the flexible lead elbow 20 willprevent the lifting of the toilet bowl and consequent damage to the sealbetween the toilet bowl and the outlet pipe which might cause leakage.

Although only two forms in which the invention may be embodied inpractice are described in this specification, it is to be understoodthat these forms are given by way of illustration only, and that theinvention is not limited to the particular disclosures, but may bemodified and embodied in various other equivalent forms withoutdeparting from its spirit. In short, the invention includes all themodifications and embodiments coming within the scope of the followingclaims.

Having thus fully described the invention, what is claimed as new andfor which it is desired to obtain Letters Patent is:

l. A conduit system for joining a toilet bowl to a vertical waste stack,comprising a flexible lead elbow connected at its upper vertical end tothe lower outlet of said toilet bowl, a rigid integral ferrule having ahorizontal cylindrical inlet portion connected with the horizontal endof said flexible elbow and a horizontal cylindrical outlet portion ofsmaller diameter than said inlet portion and having its horizontal axiseccentric to the axis of said inlet portion, the interior walls at thebottom sections of said cylindrical inlet and outlet portions lying in ahorizontal straight line and being smooth and level to preventobstruction to the free flow of sewage through the ferrule, and theoutlet end of said ferrule being connected to said vertical waste stack.

2. A conduit system for joining a toilet bowl to a vertical waste stack,comprising a flexible lead elbow connected at its upper vertical end tothe lower outlet of said toilet bowl, a rigid integral ferrule having ahorizontal cylindrical inlet portion connected with the horizontal endof said flexible elbow and a horizontal cylindrical outlet portion ofsmaller diameter than said inlet portion and having its horizontal axiseccentric to the axis of said inlet portion, the interior walls at thebottom sections of said cylindrical inlet and outlet portions lying in ahorizontal straight line and being smooth and level to preventobstruction to the free flow of sewage through the ferrule,

3 4 and athorizontal intermediate pipe connecting the outlet 441,775Renton Dec. 2, 1890 portion. of said. adapter ferrule to a T-junctionintsaid. 986,164 Glennan Mar. 7, 1911 Waste stack. 1,595,309 Mueller eta1 Aug. 10, 1926 1,977,432 Dick Oct. 16, 1934 References Cited'in thefile of this patentw 5 2,005,969 C ll J 25, 1935 UNITED STATES PATENTS290,045 Hardy Dec.,1'1,,1883v

